I have been using Zoho Mail for a month or two and it has been working very well.  I access on my Note 3 (v4.4.2) using the default Samsung client via ActiveSync.  Earlier today, it stopped working and asked me to update Security Settings and activate Device Administrator giving msync.zoho.com the ability to control my device and perform all security operations (Lock Device, Erase Device, etc).

Has something changed with the ActiveSync?  Can this be disabled?

Thanks

Steve